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    Thread: DTC: P2181 - Cooling System Fault

    1. Junior Member
      Join Date
      Jun 23rd, 2009
      Location
      Central Massachusetts
      Posts
      80
      Vehicles
      02 Mazda PR5, 03 VW Jetta 2.0L, 69 Ford Bronco, 94 Saturn SC-1, 1993 Subaru Loyale 1.8L
      08-16-2010 07:27 AM #1
      I have a 2003 Jetta with 100, 247 miles on it.
      Just the other day, the MIL came on. I plugged in the Scan-Tool and retrieved the codes:
      P2181-Cooling System Fault.

      I have heard that usually this code can be set because of a thermostat that isn't working properly. For instance, the engine is taking to long to warm up.
      Could this could also be set if the Cooling Fans aren't operating properly?

      What I noticed yesterday was that the Large Fan on the drivers side was not turning on...at all.
      However, the smaller fan was turning on at 206 degrees F & when the A/C is commanded on.

      I checked fuse # S180 (green one on top of battery) and the fuse is intact.

      Is the Cooling Fan a common failure? Or...should I be investigating the Climate Control Module?

      Thank You for any Insight.

    2. Junior Member chrisf608's Avatar
      Join Date
      Jun 28th, 2010
      Location
      WI
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      43
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      2001 Wolfsburg
      08-16-2010 02:31 PM #2
      I bet the waterpump is getting ready to go. possible its the thermostat.

    3. Junior Member
      Join Date
      Jun 23rd, 2009
      Location
      Central Massachusetts
      Posts
      80
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      02 Mazda PR5, 03 VW Jetta 2.0L, 69 Ford Bronco, 94 Saturn SC-1, 1993 Subaru Loyale 1.8L
      08-16-2010 06:47 PM #3
      I am days away from doing the T-Belt/Water Pump. Just waiting for parts.

    4. Junior Member
      Join Date
      Jun 23rd, 2009
      Location
      Central Massachusetts
      Posts
      80
      Vehicles
      02 Mazda PR5, 03 VW Jetta 2.0L, 69 Ford Bronco, 94 Saturn SC-1, 1993 Subaru Loyale 1.8L
      08-16-2010 07:51 PM #4
      Drivers side cooling fan is not operating.
      Could that set DTC - P2181?

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